15838420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60917}}^1$

素因数の和:60939

約数の個数: 24

約数和(自身を含む): 35819784

約数和(自身を除く): 19981364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 60917, 121834, 243668, 304585, 609170, 791921, 1218340, 1583842, 3167684, 3959605, 7919210, 15838420]

約数ペア:

[(1, 15838420), (2, 7919210), (4, 3959605), (5, 3167684), (10, 1583842), (13, 1218340), (20, 791921), (26, 609170), (52, 304585), (65, 243668), (130, 121834), (260, 60917)]